CN103940634B - The omnipotent corning machine of concrete - Google Patents

Abstract

The invention discloses a concrete universal coring machine, which comprises a frame and a coring drill bit. The middle part of the frame is provided with a first drive mechanism for driving the core drill bit to rotate, and the upper part of the frame is provided with a first drive mechanism for driving the core drill bit to go up and down. Two driving mechanisms, the bottom of the frame is provided with a coring machine positioning structure, the frame is also provided with a cage for installing the core bit, the first driving mechanism is located in the inside of the cage and is connected with it, the second driving mechanism It is located above the cage and is fixedly connected with it. Driven by the second driving mechanism, the cage can slide up and down along the frame. The frame is provided with a linear guide rail for supporting and guiding the motion of the cage. The invention can realize coring at any position of underwater and above-water structures, the side of the core sample is smooth, and the coring bit relies on the hydraulic motor to automatically apply force, unattended, reducing the labor intensity and construction cost of workers, and improving Core sample quality and productivity.

Description

Concrete Universal Coring Machine

technical field

The invention belongs to the field of civil engineering mechanical equipment, in particular to a concrete universal coring machine.

Background technique

Concrete is one of the most important building materials in my country's construction projects, and its quality is directly related to the safety of building structures. Strengthening the monitoring and testing of concrete quality, ensuring and improving the quality of concrete, especially the strength of concrete, is an important topic in today's construction projects. However, the composition and quality of the current concrete raw materials have changed greatly compared with the past, and the performance of concrete is affected by many factors such as on-site curing conditions, which makes the surface performance of concrete poor.

Our country has been using the rebound method to estimate the concrete strength of the solid structure for a long time. The so-called rebound method is that the rebound hammer of the rebound instrument is hit on the concrete surface by a certain elastic force, because the rebound height has a certain relationship with the concrete surface hardness. Therefore, the rebound value can reflect the surface hardness of the concrete, and the compressive strength of the concrete can be calculated according to the surface hardness. It can be seen that the rebound method can only represent the hardness value of the surface concrete, and the surface quality of today’s concrete is the weakest. This has also become one of the main reasons why a large number of solid structure springback methods fail to pass the test. The industry standard also stipulates that the unqualified structures detected by the rebound method shall be cored, and the performance of the core sample shall be used to characterize the solid concrete. However, most of the existing coring machines have the following problems: (1). The track of the drill bit is not on the same axis, which makes the force of the drill bit uneven and the surface of the core sample is not smooth, which has a great influence on the strength test results of the solid concrete; (2), using the motor as the power source of the drill bit, drilling When the drill bit needs to be cooled by running water, and in order to prevent leakage, the motor must work under dry and anhydrous conditions, which makes it difficult to implement the coring of the inclined plane position, top surface position and underwater structure of the solid structure, so that the concrete in these positions Performance is unknown; (3), existing coring machines have complex structures, inconvenient installation and maintenance, high manufacturing costs, low equipment efficiency, high labor intensity, and cannot adapt to the needs of coring under special conditions.

This shows that the prior art needs to be further improved and improved.

Contents of the invention

The present invention provides a concrete universal coring machine in order to avoid the disadvantages of the above-mentioned prior art.

The technical scheme adopted in the present invention is:

The concrete universal coring machine includes a frame and a coring bit. The middle part of the frame is provided with a first driving mechanism that drives the core bit to rotate, and the upper part of the frame is provided with a second driving mechanism that drives the coring bit to lift. The frame The bottom of the coring machine is provided with a positioning structure for the coring machine, and a cage for installing the core bit is also provided on the frame. The first driving mechanism is located inside the cage and is connected with it, and the second driving mechanism is located above the cage. Connected with it, the cage can slide up and down along the frame driven by the second drive mechanism, and the frame is provided with a linear guide rail for supporting and guiding the motion of the cage.

The first driving mechanism includes a hydraulic motor, and the hydraulic motor is a piston type hydraulic motor. The above-mentioned coring bit is connected with the rotating shaft of the hydraulic motor through a drill lock, and the drill lock is installed on the top of the coring bit. The rotating shaft of the hydraulic motor The interior is hollow, and a first water inlet conduit is pierced in the rotating shaft, and a second water inlet conduit connected with the first water inlet conduit is pierced in the core bit.

The second driving mechanism includes a hydraulic cylinder installed on the frame and a hydraulic cylinder connecting seat installed on the upper part of the cage, the hydraulic cylinder is located above the hydraulic cylinder connecting seat, and the piston rod of the hydraulic cylinder is hinged to the hydraulic cylinder connecting seat.

The outer side of the core bit is sleeved with a drill bit travel buffer structure, which includes a spring support seat installed on the upper middle part of the core drill bit and a spring washer installed at the bottom end of the core drill bit, the spring support seat and the spring pad A buffer spring is sandwiched between the sheets.

The coring bit is also surrounded by a retractable protective cover, which is connected with the coring bit through a bearing, and is connected in a sealed manner between the retractable protective cover and the coring bit, and the retractable protective cover Both the upper end surface and the lower end surface of the cover are provided with drainage ports.

The end of the second water inlet conduit close to the drilling end of the core bit is provided with a three-prong nozzle.

The frame includes three supporting beams, one of which is located at the rear, and the other two are arranged side by side and located at the front. A plurality of reinforcing ribs are arranged between adjacent two supporting beams. The beams are detachably connected.

The upper, lower, left, right and rear end surfaces of the cage are all closed structures, and the front end surface of the cage is an open structure.

There are three linear guide rails, which are respectively installed on the opposite inner sides of the above-mentioned three supporting beams. Sliders that match the three linear guides described above.

The positioning structure of the coring machine includes three positioning rulers respectively connected with each supporting beam, and the three positioning rulers are Y-shaped crossed.

Owing to adopting above-mentioned technical scheme, the beneficial effect that the present invention obtains is:

1. In the present invention, the axis of the coring bit and the straight line where the linear guide rail is located are parallel to each other, so that the hydraulic cylinder drives the coring bit to lift evenly, and the surface of the obtained core sample is smooth, which improves the accuracy of the solid concrete strength test.

2. The present invention uses hydraulic cylinders and hydraulic motors as the power source for coring bit drilling, which can realize coring at any position of underwater and above-water structures. The side of the core sample is smooth, and the coring bit relies on the hydraulic motor to automatically apply force. It is unattended, which reduces the labor intensity and construction cost of workers, and at the same time improves the quality of core samples and work efficiency.

3. The present invention has simple structure, convenient installation and maintenance, low production cost, and can adapt to the needs of coring under special conditions.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the rack in the present invention.

Fig. 3 is an assembly diagram of the core drill bit and the first driving mechanism in the present invention.

Fig. 4 is a schematic diagram of the structure of the core drill in the present invention.

Fig. 5 is a schematic structural diagram of the second water inlet conduit in the present invention.

in,

1. Rack 101, support beam 102, reinforcing rib 103, linear guide rail 104, cage 105, slider 106, top cover 2, second driving mechanism 201, hydraulic cylinder 202, hydraulic cylinder connecting seat 203, hinge bolt 3, First driving mechanism 301, hydraulic motor 302, first water inlet pipe 4, coring drill bit 401, drill bit lock 402, bearing 403, spring support seat 404, buffer spring 405, spring washer 406, second water inlet pipe 407, trident Nozzle 408, retractable protective cover 409, drain port 5, coring machine positioning structure 501, positioning ruler

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

As shown in Figures 1 and 2, the concrete universal coring machine includes a frame 1 and a core bit 4, and the frame 1 includes three support beams 101, one of which is located at the rear, and the other two are arranged side by side and located at the front. The support beams 101 are arranged in an equilateral triangle, wherein a plurality of reinforcing ribs 102 are arranged between two adjacent support beams 101, and a top cover 106 is provided on the top of the frame 1, and the space between the top cover 106 and each support beam 101 is detachable. connection; the middle part of the frame 1 is provided with a first drive mechanism 3 that drives the core bit 4 to rotate, the upper part of the frame 1 is provided with a second drive mechanism 2 that drives the core bit 4 to lift, and the bottom of the frame 1 is provided with a The core machine positioning structure 5, the core machine positioning structure 5 includes three positioning rulers 501 connected to each support beam 101 through positioning bolts respectively, the three positioning rulers 501 are Y-shaped cross, and the frame 1 is also provided with The cage 104 of the core drill bit 4, the upper, lower, left, right and rear end surfaces of the cage 104 are all closed structures, the front end surface of the cage 104 is an open structure, and the first driving mechanism 3 is located inside the cage 104 And be fixedly connected with it, the second driving mechanism 2 is positioned at the top of the cage 104 and is fixedly connected with it, the cage 104 can slide up and down along the frame 1 under the drive of the second driving mechanism 2, and the frame 1 is provided with a There are three linear guide rails that support and guide the movement of the cage 104. There are three linear guide rails 103, which are respectively installed on the opposite inner sides of the above-mentioned three support beams 101. The left, right, and rear end surfaces of the frame 104 are respectively fixedly connected with slide blocks 105 that are compatible with the three linear guide rails 103; The axis of the coring bit 4 is parallel to the straight line where the linear guide rail is located, so that the second drive mechanism 2 can drive the coring bit up and down with even force, and obtain a smooth core sample.

As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the first driving mechanism 3 includes a hydraulic motor 301, and the hydraulic motor 301 is a piston type hydraulic motor. The rotating shaft of the motor 301 is connected, the drill bit lock 401 is installed on the top of the coring drill 4, the rotating shaft of the hydraulic motor 301 is hollow inside and the first water inlet conduit 302 is pierced in the rotating shaft, and the coring drill 4 is pierced with the first water inlet conduit 302. A water inlet conduit 302 is connected to a second water inlet conduit 406, the end of the second water inlet conduit 406 near the drilling end of the coring bit 4 is provided with a trident nozzle 407, and a water supply system is provided inside the core bit 4, The external water is directly sprayed on the coring bit 4 through the first and second water inlet conduits, and the setting of the trident nozzle 407 can make the water more evenly sprayed to the drilling end of the coring bit 4, thereby effectively reducing the cost of coring. The temperature during the drilling process of the drill bit 4 prolongs the service life of the coring drill bit 4 while improving the work efficiency.

As shown in Figure 1, the second drive mechanism 2 includes a hydraulic cylinder 201 fixedly connected to the bottom of the top cover 106 and a hydraulic cylinder connecting seat 202 connected to the upper end surface of the cage 104 through positioning bolts. Above the cylinder connecting seat 202 , the upper part of the hydraulic cylinder 201 is connected with the top cover 106 through positioning bolts, and the piston rod of the hydraulic cylinder 201 is hinged with the hydraulic cylinder connecting seat 202 through the hinge bolt 203 . In the present invention, the hydraulic motor 301 and the coring bit 4 are assembled and installed on the cage 104, and the cage 104 is fixedly connected with the hydraulic cylinder connection seat 202, so the hydraulic cylinder 201 can push and retract the cage 104 to realize coring Drill 4 forward and backward.

As shown in Fig. 3 and Fig. 4, the outside of the core bit 4 is sleeved with a bit travel buffer structure, and the drill bit travel buffer structure includes a spring support seat 403 installed on the middle and upper part of the coring bit 4 and a spring support seat 403 installed on the core bit. 4 The spring washer 405 at the bottom, the buffer spring 404 is sandwiched between the spring support seat 403 and the spring washer 405; the core bit 4 is also surrounded by a set for collecting sewage and guiding the sewage to the outside of the equipment The retractable protective cover 408, the retractable protective cover 408 is connected with the coring bit 4 through the bearing 402, and is a sealed connection between the retractable protective cover 408 and the coring bit 4, thereby realizing the core bit 4 When rotating, the telescopic protective cover 408 can be rotated or not. The upper end surface and the lower end surface of the telescopic protective cover 408 are all provided with drains 409, wherein the drains located on the upper end face are used to remove the coring after the coring is completed. After getting rid of the water remaining in the retractable protective cover 408, the water outlet located on the lower end face is used to get rid of the excess water on the spring washer 405, and the retractable protective cover 408 is also provided with a spring supported by the buffer spring 404. Gaskets, this structure ensures that the coring bit 4 can be soaked in water for a long time during the coring process, thereby reducing the temperature of the coring bit 4 and improving work efficiency.

The supply of hydraulic power of the hydraulic cylinder 201 and the hydraulic motor 301 in the present invention comes from a hydraulic pump station connected to the coring machine in the present invention through pipelines, and the water required by the coring bit 4 comes from an external small water pump. When in use, first install the positioning ruler 501 on the position where the coring needs to be taken, determine the installation position of the coring machine, and then directly drill holes to install and fix the entire coring machine. After the coring machine is installed and fixed, directly connect the hydraulic circuit and After the waterway is installed in place, the hydraulic cylinder 201 and the hydraulic motor 301 can be started to work. In the present invention, the hydraulic cylinder 201 pushes and retracts the cage 104 to drive the coring bit 4 to advance and retreat, and the hydraulic motor 301 drives the core bit 4 to rotate. After removing the core sample, the hydraulic oil pipe and water pipe are removed and recovered. Well, then open the drain port of the retractable protective cover 408 to drain away the residual sewage.

The parts not mentioned in the present invention can be realized by adopting or referring to the prior art.

In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific configuration and operation, and therefore should not be construed as limiting the invention.

In addition, "first" and "second" in the present invention are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

Although terms such as the frame 1, the second driving mechanism 2, the hydraulic cylinder connection seat 202, the coring bit 4, the drill lock 401, the trident nozzle 407, and the positioning structure 5 of the coring machine are frequently used in this paper, they do not The possibility of using other terms is excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

It should be further explained that the specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (10)

1. Concrete universal coring machine, including a frame and a coring bit, is characterized in that: the middle part of the frame is provided with a first driving mechanism that drives the core bit to rotate, and the upper part of the frame is provided with a first driving mechanism that drives the core bit to lift. Two driving mechanisms, the bottom of the frame is provided with a coring machine positioning structure, the frame is also provided with a cage for installing the core bit, the first driving mechanism is located in the inside of the cage and is connected with it, the second driving mechanism It is located above the cage and is fixedly connected with it. Driven by the second driving mechanism, the cage can slide up and down along the frame. The frame is provided with a linear guide rail for supporting and guiding the motion of the cage. 2. The concrete universal coring machine according to claim 1, characterized in that: the first driving mechanism includes a hydraulic motor, and the hydraulic motor is a piston hydraulic motor, and the above-mentioned core bit is connected to the hydraulic motor through the drill bit lock. The shaft of the hydraulic motor is connected to each other, the drill lock is installed on the top of the coring bit, the shaft of the hydraulic motor is hollow inside and the shaft is pierced with a first water inlet conduit, and the core drill bit is pierced with a pipe connected to the first water inlet conduit. Second water inlet conduit. 3. The concrete universal coring machine according to claim 1, characterized in that: the second drive mechanism includes a hydraulic cylinder installed on the frame and a hydraulic cylinder connection seat installed on the upper part of the cage, and the hydraulic cylinder is located on the hydraulic cylinder. Above the cylinder connecting seat, the piston rod of the hydraulic cylinder is hinged with the hydraulic cylinder connecting seat. 4. The concrete universal coring machine according to claim 1, characterized in that: the outer side of the core drill bit is sleeved with a drill bit travel buffer structure, and the drill bit travel buffer structure includes a spring support installed in the middle and upper part of the core drill bit Seat and the spring washer installed at the bottom of the coring drill bit, a buffer spring is sandwiched between the spring support seat and the spring washer. 5. The concrete universal coring machine according to claim 1 or 4, characterized in that: the coring bit is also surrounded by a telescopic protective cover, and the telescopic protective cover is connected with the coring bit through a bearing, In addition, the telescopic protective cover and the coring bit are connected in a sealed manner, and the upper end surface and the lower end surface of the telescopic protective cover are all provided with drainage ports. 6. The concrete universal coring machine according to claim 2, characterized in that: the end of the second water inlet conduit close to the drilling end of the core bit is provided with a three-prong nozzle. 7. The concrete universal coring machine according to claim 1, characterized in that: the frame includes three support beams, one of which is located at the rear, and the other two are side by side and located at the front, and there is a gap between adjacent two support beams A plurality of reinforcing ribs, a top cover is provided on the top of the frame, and the top cover is detachably connected to each support beam. 8. The concrete universal coring machine according to claim 1, characterized in that: the upper, lower, left, right and rear end faces of the cage are all closed structures, and the front end faces of the cage are open structures. 9. The concrete universal coring machine according to claim 7, characterized in that: there are three linear guide rails, which are respectively installed on the opposite inner sides of the above three support beams, and the cage is located in the encircling circle formed by the cooperation of the three support beams Inside, and the left, right and rear end surfaces of the cage are respectively fixed with sliders that are compatible with the three linear guide rails. 10. The concrete universal coring machine according to claim 7, characterized in that: the positioning structure of the coring machine includes three positioning rulers respectively connected to each supporting beam, and the three positioning rulers are Y-shaped crossed.